Salesforce Identity uses the XML-based Security Assertion Markup Language (SAML) protocol for single sign-on into Salesforce from a corporate portal or identity provider. With SAML, you can transfer user information between services, such as from Salesforce to Microsoft 365.

An identity provider is a trusted provider that lets you use single sign-on (SSO) to access other websites. SSO can be a great help to your users—instead of having to remember many passwords, they only have to remember one.

Let your users log in across multiple Salesforce orgs using single sign-on (SSO) credentials. With SSO, you can validate user credentials against a corporate database or other app rather than managing separate passwords for each Salesforce org.